Murphy told BBC Suffolk: "You look at the young boys in training and they're buzzing around and deserve to be there.
"The gaffer [Roy Keane] is experienced in spotting players and it's great to have them coming through."
He added: "The second that stops you have to have a look at what's happening behind the scenes but the young boys here have been great and they keep us [senior players] on our toes."
Source: BBC Sport